Anis Elaoud

Institut Supérieur des Sciences et Technologies de l'Environnement Borj Cedria-Universite de Carthage

Nowadays, it is compulsory to reduce the production costs of the crop and to adopt methods favoring sustainable agriculture. This is achieved through the reduction of tillage operations by adopting conservation tillage allowing the saving of energy and production costs. Indeed, reduced tillage would offer farmers the opportunity to comply with good...

Even though water treatment can be based on several techniques, one new promising process is applying magnetic treatment to water, which can alleviate salinity stress and improve crop productivity. Using magnetic technology in agriculture is considered non-conventional, economical, and eco-friendly. Moreover, it can improve soil and water propertie...

In order to clarify and validate the effect of the magnetic treatment on physicochemical properties of water, a precise study is carried out in this paper. To reach our purpose, laboratory tests were carried out to obtain information on the effect of ionic water composition after magnetic treatment on the evaporation rate. The results showed that,...

The demanding use of agricultural machines would lead to grave problems concerning the quality of agriculture soils making their compaction and disturbing the growth of the associated vegetation. Indeed, it affects the water infiltration and the soil structure. Different techniques of tillage are carried out to ameliorate the soil state. In this pa...

The degradation of water quality in Tunisia is mainly due to overexploitation of groundwater, pollution, and above all to mismanagement. The effect of these waters can influence the physicochemical quality of the soil. For this fact, the method of magnetic treatment can be used in the field of agriculture to alleviate the salinity problems of water...

The degradation of water quality in Tunisia is mainly due to overexploitation of groundwater, pollution and above all to mismanagement. The effect of these waters can influence the physicochemical quality of the soil. For this fact, the method of magnetic treatment can be used in the field of agriculture to alleviate the salinity problems of water....

2019-nCoV is a virulent virus belonging to the coronavirus family that caused the new pneumonia (COVID-19) which has spread internationally very rapidly and has become pandemic. In this research paper, we set forward a statistical model called SIR-Poisson that predicts the evolution and the global spread of infectious diseases. The proposed SIR-Poi...

In this study, the physicochemical treatment of magnetized water during its heating and cooling was monitored. Very important results of the action of the electromagnetic field on tap water were found. The application of electromagnetic fields influenced the physicochemical characteristics of water by lowering its surface tension from 0.083 (N/m) t...

Ce livre illustre une étude expérimentale et théorique de l'effet du traitement magnétique des eaux.

Whether at high or low levels, the presence of salt in water can potentially be harmful to crops as well as the environment. Saline water is already used by irrigators around the world to produce food owing to limited freshwater supplies. In addition to the common methods for reducing salinity stress, some magnetic devices have recently been spread...

L'étude des effets du champ magnétique sur des échantillons des eaux contaminées. La modélisation des effets-Traitement des eaux-prise de décision

Objectives: To study the influence of electromagnetic fields on the physico-mechanical properties of the mortar (resistance to compression and bending). Methods/analysis: In the current research, the influence of the electromagnetic field in the mortar was studied experimentally by replacing the cement with 10% bottom ash provided from a thermal po...

The intensive use of machinery in the agricultural area can have serious effects on the soil quality causing its compaction and changes in the related vegetation growth. In fact, consequent phenomena such as water stagnation due to lack of water infiltration, insects proliferation and vegetable pests attack might be observed. Accordingly, the soil...

Magnetic water technology has been widely studied and adopted in the field of agriculture in many countries (Europe, Russia, China, etc….), but in Morocco, the information available on the application of water loving in the agricultural sector is very limited. In order to show the effect of this technique on plant production under Moroccan conditio...

This work presents an experimental study to investigate the effect of the electromagnetic on the tap water properties of water. The water flows through a closed loop with a speed of 0.18m/s, while the pH, TDS, and hardness represent its properties. For magnetized water using the aqua 4D device. the conductivity, TDS, salinity, temperature, absorban...

The electromagnetic memory of water at kinetic condition

Under the external magnetic field, water (H2O) was exposed for different times to electromagnetic field that is generated by Aqua 4D device at flow conditions for two flow rates as v=0.18m/s and v=0.6m/s at temperature 26.4°C. The pH and pH difference was investigated before and after exposure of the magnetization of water. It was found that EMF in...

This paper describes the physicochemical treatment of magnetized water during its heating and cooling. The application of electromagnetic fields influences the physicochemical parameters of water by decreasing its surface tension from 0.083 (N/m) to 0.0417 (N / m) at a temperature of 26.5° C with a percentage of 26.36%. Very important results of th...

This study investigates the performance of the combination of biological pre-treatment with Kefir grains (KGs) and photocatalytic process using Ag-doped TiO2 nanoparticles (NPs) for the simultaneous removal of toxic pollutants from landfill leachate (LFL). After 5 days of 1% (w/v) KGs pre-treatment at 37 °C, TOC, COD, NH4+-N, and PO43- removal rate...

Abstract Magnetic devices are nowadays used in different fields. Primarily, these devices have an effect on the environment: water, plant and soil. The experimental tests carried out showed a significance of the treatment of water by the magnetization technique. The effect of the magnetic device is illustrated by the increase of cucumber and melon...

Abstract Tillage causes a problem on its condition through the passage of gear during plowing. Hence, we must study and optimize the parameters of this phenomenon to remedy and find solutions to reduce the damage. This review examines the effect of repeated passages during tillage on agricultural land. The experiments were carried out with a Kubota...

This work aims to investigate the applicability of electrical resistivity tomography (ERT) as a non-destructive tool of agricultural soil characterization after digestate of fruit and vegetable (DFV) amendment application. DFV was applied at 30 t ha⁻¹ in one application (D1), split into 2 (D2) and 6 applications (D6), and compared with initial stat...

In regions with water scarcity both quantity and quality of water is important. This study was conducted to investigate the effects of magnetic treatment on water characteristics and potato yield. During this study two magnetic treatments were used using two devices (A 1 and A 2) and a control. Magnetic field application lead to increase in the pH...

ph magnetic

Water scarcity and concentration of salts in soils are currently considered as threats to human life. The degradation of irrigation water quality is mainly due to overexploitation of natural resources, poor management and pollution. However, these factors limit the development of agriculture. Although the method of treating water by a magnetic fiel...

In regions with water scarcity both quantity and quality of water is important. This study was conducted to investigate the effects of magnetic treatment on water characteristics and potato yield. During this study two magnetic treatments were used using two devices (A 1 and A 2) and a control. Magnetic field application lead to increase in the pH...

In agricultural areas, the use of machinery leads to improved yields. Nevertheless, its inadequate implementation and excessive utilization can seriously affect the soil efficiency. In fact, latter can be generated by increasing the penetration resistance and subsequently, it results in the compaction phenomenon. This problem becomes considerable w...

Les eaux chargées en sels posent des grands problèmes dans le domaine hydraulique. La salinité des eaux d’irrigation présente un grand souci pour l’agriculture, en affectant la productivité et le rendement des cultures. Afin de pallier en partie à ces problèmes, différents procédés physiques sont mis à l’épreuve telle que les procédés électriques e...

Ces essais ont permis de mettre en évidence l’effet favorable sur les paramètres de croissance et le rendement en termes de quantité. Les résultats ont indiqué une accélération de la vitesse de croissance durant les stades précoces. Ils ont également montré un développement pertinent du potentiel foliaire. Ce constat est attribué à la biodisponibil...

Magnetic treatment processes can be used in the field of agriculture to mitigate the problems of the salinity of irrigation and the problems of scaling in hydraulics circuits. It is clear, in our study, that the magnetic device influences the characteristics of the limestone, where we observe an acceleration of seeding of the limestone under its ne...

Today, there is a continuing degradation of water quality due to the overexploitation of groundwater, pollution and above all, mismanagement in the various fields (agricultural, industrial and domestic). In this framework, a new approach was used to magnetic treat water in order to see the variation in the different parameters related to quality an...

This work shows the EC decrease in magnetized water and the increase in pH during magnetic tracing. This variation depends on the time following the processing phenomenon before reaching the initial value. An increase in melon yield (39%) is accompanied by magnetic treatment. We observe the high significance of these results with a regression R (0....

The search for alternatives to manure capable of allowing the soil to regain satisfactory levels of fertility has consequently become in recent years a privileged axis of research and development in Tunisia. The objective of this work is to evaluate the biomethanization (digestate) reflux, after the production of energy, in the organic fertilizatio...

Magnetic treatment processes can be used in the field of agriculture to mitigate the problems of the salinity of irrigation and the problems of scaling in hydraulics circuits. It is clear, in our study, that the magnetic device influences the characteristics of the limestone, where we observe an acceleration of seeding of the limestone under its ne...

Today, there is a continuing degradation of water quality due to the overexploitation of groundwater, pollution and above all, mismanagement in the various fields (agricultural, industrial and domestic). In this framework, a new approach was used to magnetic treat water in order to see the variation in the different parameters related to quality an...

Les bioréacteurs scientifiques coûtent énormément chers. Seules quelques unités pilotes sont disponibles dans les laboratoires Tunisiens. La plupart des scientifiques, qui travaillent sur la technologie de biométhanisation, bricolent souvent des réacteurs improvisés. L'objectif de la conception et de la réalisation d'un réacteur de méthanisation, e...

Dans cet article, on étudie l'influence du passage du tracteur en travail du sol conventionnel et en planches permanentes sur le tassement du sol. Le tassement du sol après passage du tracteur a été évalué par des mesures de sa résistance à la pénétration sur une parcelle à texture sablo-argileuse. Les mesures sont effectuées à l'état initial avant...

Cet essai a été mis au point dans l'objectif de tester le digestat, sous produit du processus de méthanisation produisant de l'énergie renouvelable, pour l'amendement du sol d'une culture de melon conduite en plein champ. Six traitements ont été proposés: Un digestat de biométhanisation de fruits et légumes à 30 t/ha appliqué une seule fois (D1), f...

Les procédés de traitement magnétique sont utilisés actuellement dans le domaine d'agriculture afin de pallier les problèmes de la salinité des eaux d'irrigation ainsi que les problèmes de l'entartrage dans les circuits hydrauliques. Il est clair, dans notre étude, que l'appareil magnétique influe sur les caractéristiques du calcaire. On observe un...

The degradation of water quality in Tunisia is mainly due to the overexploitation of groundwater, pollution and especially mismanagement in the different areas. Magnetic treatment methods can be used in the field of agriculture to alleviate salinity problems of irrigation. It is clear that the magnetic device influences the characteristics of limes...

The degradation of water quality in Tunisia is mainly due to the overexploitation of groundwater, pollution and especially mismanagement in the different areas. Magnetic treatment methods can be used in the field of agriculture to alleviate salinity problems of irrigation. It is clear that the magnetic device influences the characteristics of limes...

Soil compaction is a serious problem for vegetable crops. This compaction is caused by the passage of gear on the soil, especially under conditions of excess moisture. We studied the influence of the number of passage of the tractor, and the permanent plates on the degradation of the soil and the compaction. The experimental pieces that are based o...

Les bioréacteurs scientifiques coutent énormément chers. Seuls quelques unités pilotes sont disponibles dans les laboratoires Tunisiens. La plupart des scientifiques qui travaillent sur la technologie de biométhanisation bricolent souvent des réacteurs improvisés. L'objectif de la conception et de la réalisation d'un réacteur de méthanisation, est...

Cet essai a été mis au point dans l'objectif de tester le digestat, sous produit du processus de méthanisation produisant de l'énergie renouvelable, pour l'amendement du sol d'une culture de melon conduite en plein champ. Six traitements ont été proposés: Un digestat de biométhanisation de fruits et légumes à 30 t/ha appliqué une seule fois (D1), f...

Les eaux chargées en sels posent des grands problèmes dans le domaine hydraulique. La salinité des eaux d’irrigation présente un grand souci pour l’agriculture, en affectant la productivité et le rendement des cultures. Afin de pallier en partie à ces problèmes, différents procédés physiques sont mis à l’épreuve telle que les procédés électriques e...

En secteur maraîcher, plusieurs pratiques agricoles sont effectuées fréquemment sur de courtes périodes sur sol humide. Cela conduit à une plus grande susceptibilité du sol à la compaction. Cette dernière est persistante et cumulée (Hakansson et al., 1988). Par ailleurs, les causes principales du tassement du sol sont liées directement ou indirecte...

Journées scientifiques de la Medjerda 2016

This work aims to investigate the applicability of Electrical Resistivity Tomography (ERT) as non-destructive tool of agricultural soil characterization after digestate of fruit and vegetable (DFV) amendment application. DFV was applied at 30 t. ha-1 in one application (D1), split into 2 (D2) and 6 applications (D6) and compared to initial state (I...

In order to improve and develop the Tunisian agriculture, the government has encouraged the introduction of modern technologies and has also promoted the adoption of innovative practices cultures. Indeed, the extensive use of mechanization increases the crop productivity but its inadequate application also has adverse effects on the soil caused by...

Soil compaction is a serious problem in agriculture. This compression is caused by the passage of machinery on soils, particularly in conditions of excess moisture. At regional level, we studied the influence of the weight of two different tractors on soil failure and compaction. The experimental parts which are based on the passage of two types of...

Conservation tillage systems merit further studies before their diffusion in organic agriculture as they can cause problems with crop nutrition and degradation of soil structure during the early years of their application. The objective of this study was to evaluate in short-term the impact of different tillage systems in organic farming (tradition...

To evaluate the impact of tillage systems on soil environment, it is necessary to quantify the modifications to the soil structure. Three different techniques were compared: minimum tillage with discs harrow, medium tillage with discs plow and conventional deep tillage with mouldboard plowing. Tests were carried out over a sandy loam soil in the Hi...

This study aims to assess the impact of four types of organic amendments on soil fertility and pepper crop (Capsicum annuum, L.) cv. starter and chargui under greenhouse. Six treatments have been proposed: cattle manure (T1) 55 t.ha-1, commercial compost of German origin (T2) 1 t.ha-1, mixture of 27.5 t.ha-1 of T1 + 0.5 t.ha-1 of T2 (T3), commercia...

The problem of water in Tunisia affects the quality and quantity. Tunisia is in a situation of water shortage. It was estimated that 4.6 Mm3/an. Moreover, the quality of water in Tunisia is also mediocre. In fact, 50% of water has a high salinity (>1.5g/l). There are several parameters which affect water quality such as sodium, fluoride… An excess...

Soil compaction is a serious problem in agriculture. This compression is caused by the passage of machinery on soils, particularly in conditions of excess moisture. At regional level, we studied the influence of the weight of two different tractors on soil failure and compaction. The experimental parts which are based on the passage of two types of...

In agricultural land can be observed problems regarding water and soil. The problems of water flow can cause breaks in pipes, and the problems associated with soil because of the passage of vehicles and lead to compaction, engender changes in soil parameter directly affects the infiltration water and fruit yield regression plants. In this paper, we...

In order to improve and develop the Tunisian agriculture, the government has encouraged the introduction of modern technologies and has also promoted the adoption of innovative practices cultures. Indeed, the extensive use of mechanization can increase crop productivity but its inadequate application also has a negative impact on the ground caused...

The compared evaluation of performance and cost of green mowers with one or three cut drums (Simplex or Triplex) has been examined by means of field experiments in El Kantaoui golf (Sousse) and Citrus golf (Hammamet). Measures interested field time and effective work time, field efficiency and work speed as well as the operation costs. Results show...

The effects of the working depth of mechanical aeration of a grassy sward were performed at a golf green in Tunisia. The study focused on measurements of roots length, soil resistance to penetration and its bulk density before and after passage of a hollow tines aerator working at a depth of 6 cm and 12 cm treatments. The perforation density of 250...

Potable water in Tunisia has well defined characteristics. Thus, the Water researches and Technologies Centre-Borj Cedria mainly processing Natural Waters Laboratory, has worked on the physic-chemical quality of the water. As the Higher Institute of Agronomy-chott mariem have studied the phenomena associated with flows. For this work shows that nat...

Dans ce papier, on étudie l'influence du poids de deux différents tracteurs sur le tassement du sol. Pour quantifier ce compactage provoqué par le premier tracteur de masse1200Kg et le deuxième de masse 1600Kg et à pression de gonflage des roues de 2Bars, une étude sur la résistance à la pénétration, la masse volumique est effectuée sur un vergé tr...

Horticulture in Mediterranean areas demand frequent tractor traffic for tillage and for the application of herbicides and pesticides, resulting in soil compaction. Soil compaction is one of the most important factors responsible for soil physical degradation. This compaction by agricultural machines can have adverse effects on crop production and t...

RESUME L'objectif de ce papier est de quantifier le compactage du sol provoqué par un tracteur agricole pour un nombre bien déterminé de passages au niveau d'une parcelle. Le tassement du sol est l'un des grands problèmes de l'agriculture moderne. La surutilisation de la machinerie et la gestion inadéquate des sols conduit au compactage. Ce compact...

Le traitement des écoulements transitoires fait partie des problèmes complexes et relativement récents qui nécessitent encore de nombreuses études de la part des chercheurs avant d'atteindre une solution satisfaisante. Les récents progrès, enregistrés dans les moyens informatiques et les méthodes numériques, ont contribué à l'évolution de la modéli...

When starting a pump, the speed of the electric motor rises from zero up to the permanent regime speed. This change in regime influences the flow of the hydraulic installation and forced it to follow the starting dynamic law of the motor. Under the effect of the friction force, due to the fluid viscosity, the transient regime is dumped until reachi...